Cathodic synthesis of Al-Ce-Mn Oxide nanohybride powder with improved surface for effective removal of fluoride from aqueous media
سال انتشار: 1401
نوع سند: مقاله ژورنالی
زبان: انگلیسی
مشاهده: 131
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شناسه ملی سند علمی:
JR_JWENT-7-1_003
تاریخ نمایه سازی: 28 فروردین 1401
چکیده مقاله:
Al-Ce-Mn oxide samples were synthesized by the cathodic electrochemical method at current densities of ۵, ۱۵, and ۳۵ mAcm-۲. The XRD, SEM, and EDX techniques were used for the characterization of samples. The SEM images show that at high current density the one-dimensional(nanowire) structure and at low current density two-dimensional (nanosheet) structure were obtained. Moreover, the particle sizes are decreased with increasing the current density. The samples were applied for the uptake of fluorine (F-) ions from solutions. The influence of the contact time, initial fluoride concentration, and solution pH on the adsorption was investigated. The results showed more than ۸۰ % of F- ions were uptake from solution during the three hours initial contact times and the uptake capacity has little change at pH below ۶ and it has a sharp decline with increasing solution pH. The kinetic data were well fitted to the pseudo-second-order model and the equilibrium adsorption data was well described by the Langmuir isotherm model. The adsorption capacity was ۴۸ mg/g at pH ۶ and room temperature.
کلیدواژه ها:
نویسندگان
Taher Yousefi
Nuclear Fuel Cycle Research School, Nuclear Science and Technology Research Institute,
Ramin Yavari
Nuclear Science and Technology Research Institute, Tehran, Iran
D Rezaei Uchbelagh
Amirkabir University of Technology Tehran
Abbas Ariamanesh
Amirkabir University of Technology Tehran
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